﻿using System;
using System.Data;
using System.Text;
using System.Data.SqlClient;
using jnlamp.DBUtility;//Please add references
namespace jnlamp.DAL
{
	/// <summary>
	/// 数据访问类:cxinfo
	/// </summary>
	public partial class cxinfo
	{
		public cxinfo()
		{}
		#region  BasicMethod

		/// <summary>
		/// 得到最大ID
		/// </summary>
		public int GetMaxId()
		{
		return DbHelperSQL.GetMaxID("cxid", "cxinfo"); 
		}

		/// <summary>
		/// 是否存在该记录
		/// </summary>
		public bool Exists(int cxid)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) from cxinfo");
			strSql.Append(" where cxid=@cxid");
			SqlParameter[] parameters = {
					new SqlParameter("@cxid", SqlDbType.Int,4)
			};
			parameters[0].Value = cxid;

			return DbHelperSQL.Exists(strSql.ToString(),parameters);
		}


		/// <summary>
		/// 增加一条数据
		/// </summary>
		public int Add(jnlamp.Model.cxinfo model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("insert into cxinfo(");
			strSql.Append("devid,uid,updatetime,infos,uppic)");
			strSql.Append(" values (");
			strSql.Append("@devid,@uid,@updatetime,@infos,@uppic)");
			strSql.Append(";select @@IDENTITY");
			SqlParameter[] parameters = {
					new SqlParameter("@devid", SqlDbType.VarChar,20),
					new SqlParameter("@uid", SqlDbType.Int,4),
					new SqlParameter("@updatetime", SqlDbType.SmallDateTime),
					new SqlParameter("@infos", SqlDbType.NText),
					new SqlParameter("@uppic", SqlDbType.VarChar,200)};
			parameters[0].Value = model.devid;
			parameters[1].Value = model.uid;
			parameters[2].Value = model.updatetime;
			parameters[3].Value = model.infos;
			parameters[4].Value = model.uppic;

			object obj = DbHelperSQL.GetSingle(strSql.ToString(),parameters);
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 更新一条数据
		/// </summary>
		public bool Update(jnlamp.Model.cxinfo model)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("update cxinfo set ");
			strSql.Append("devid=@devid,");
			strSql.Append("uid=@uid,");
			strSql.Append("updatetime=@updatetime,");
			strSql.Append("infos=@infos,");
			strSql.Append("uppic=@uppic");
			strSql.Append(" where cxid=@cxid");
			SqlParameter[] parameters = {
					new SqlParameter("@devid", SqlDbType.VarChar,20),
					new SqlParameter("@uid", SqlDbType.Int,4),
					new SqlParameter("@updatetime", SqlDbType.SmallDateTime),
					new SqlParameter("@infos", SqlDbType.NText),
					new SqlParameter("@uppic", SqlDbType.VarChar,200),
					new SqlParameter("@cxid", SqlDbType.Int,4)};
			parameters[0].Value = model.devid;
			parameters[1].Value = model.uid;
			parameters[2].Value = model.updatetime;
			parameters[3].Value = model.infos;
			parameters[4].Value = model.uppic;
			parameters[5].Value = model.cxid;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}

		/// <summary>
		/// 删除一条数据
		/// </summary>
		public bool Delete(int cxid)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from cxinfo ");
			strSql.Append(" where cxid=@cxid");
			SqlParameter[] parameters = {
					new SqlParameter("@cxid", SqlDbType.Int,4)
			};
			parameters[0].Value = cxid;

			int rows=DbHelperSQL.ExecuteSql(strSql.ToString(),parameters);
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
       
		/// <summary>
		/// 批量删除数据
		/// </summary>
		public bool DeleteList(string cxidlist )
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("delete from cxinfo ");
			strSql.Append(" where cxid in ("+cxidlist + ")  ");
			int rows=DbHelperSQL.ExecuteSql(strSql.ToString());
			if (rows > 0)
			{
				return true;
			}
			else
			{
				return false;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public jnlamp.Model.cxinfo GetModel(int cxid)
		{
			
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select  top 1 cxid,devid,uid,updatetime,infos,uppic from cxinfo ");
			strSql.Append(" where cxid=@cxid");
			SqlParameter[] parameters = {
					new SqlParameter("@cxid", SqlDbType.Int,4)
			};
			parameters[0].Value = cxid;

			jnlamp.Model.cxinfo model=new jnlamp.Model.cxinfo();
			DataSet ds=DbHelperSQL.Query(strSql.ToString(),parameters);
			if(ds.Tables[0].Rows.Count>0)
			{
				return DataRowToModel(ds.Tables[0].Rows[0]);
			}
			else
			{
				return null;
			}
		}


		/// <summary>
		/// 得到一个对象实体
		/// </summary>
		public jnlamp.Model.cxinfo DataRowToModel(DataRow row)
		{
			jnlamp.Model.cxinfo model=new jnlamp.Model.cxinfo();
			if (row != null)
			{
				if(row["cxid"]!=null && row["cxid"].ToString()!="")
				{
					model.cxid=int.Parse(row["cxid"].ToString());
				}
				if(row["devid"]!=null)
				{
					model.devid=row["devid"].ToString();
				}
				if(row["uid"]!=null && row["uid"].ToString()!="")
				{
					model.uid=int.Parse(row["uid"].ToString());
				}
				if(row["updatetime"]!=null && row["updatetime"].ToString()!="")
				{
					model.updatetime=DateTime.Parse(row["updatetime"].ToString());
				}
				if(row["infos"]!=null)
				{
					model.infos=row["infos"].ToString();
				}
				if(row["uppic"]!=null)
				{
					model.uppic=row["uppic"].ToString();
				}
			}
			return model;
		}

		/// <summary>
		/// 获得数据列表
		/// </summary>
		public DataSet GetList(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select cxid,devid,uid,updatetime,infos,uppic ");
			strSql.Append(" FROM cxinfo ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			return DbHelperSQL.Query(strSql.ToString());
		}

		/// <summary>
		/// 获得前几行数据
		/// </summary>
		public DataSet GetList(int Top,string strWhere,string filedOrder)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select ");
			if(Top>0)
			{
				strSql.Append(" top "+Top.ToString());
			}
			strSql.Append(" cxid,devid,uid,updatetime,infos,uppic ");
			strSql.Append(" FROM cxinfo ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			strSql.Append(" order by " + filedOrder);
			return DbHelperSQL.Query(strSql.ToString());
		}

		/// <summary>
		/// 获取记录总数
		/// </summary>
		public int GetRecordCount(string strWhere)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("select count(1) FROM cxinfo ");
			if(strWhere.Trim()!="")
			{
				strSql.Append(" where "+strWhere);
			}
			object obj = DbHelperSQL.GetSingle(strSql.ToString());
			if (obj == null)
			{
				return 0;
			}
			else
			{
				return Convert.ToInt32(obj);
			}
		}
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
		{
			StringBuilder strSql=new StringBuilder();
			strSql.Append("SELECT * FROM ( ");
			strSql.Append(" SELECT ROW_NUMBER() OVER (");
			if (!string.IsNullOrEmpty(orderby.Trim()))
			{
				strSql.Append("order by T." + orderby );
			}
			else
			{
                strSql.Append("order by T.updatetime desc");
			}
			strSql.Append(")AS Row, T.*  from Vcxinfo T ");
			if (!string.IsNullOrEmpty(strWhere.Trim()))
			{
				strSql.Append(" WHERE " + strWhere);
			}
			strSql.Append(" ) TT");
			strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
			return DbHelperSQL.Query(strSql.ToString());
		}

		/*
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetList(int PageSize,int PageIndex,string strWhere)
		{
			SqlParameter[] parameters = {
					new SqlParameter("@tblName", SqlDbType.VarChar, 255),
					new SqlParameter("@fldName", SqlDbType.VarChar, 255),
					new SqlParameter("@PageSize", SqlDbType.Int),
					new SqlParameter("@PageIndex", SqlDbType.Int),
					new SqlParameter("@IsReCount", SqlDbType.Bit),
					new SqlParameter("@OrderType", SqlDbType.Bit),
					new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
					};
			parameters[0].Value = "cxinfo";
			parameters[1].Value = "cxid";
			parameters[2].Value = PageSize;
			parameters[3].Value = PageIndex;
			parameters[4].Value = 0;
			parameters[5].Value = 0;
			parameters[6].Value = strWhere;	
			return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
		}*/

		#endregion  BasicMethod
		#region  ExtensionMethod
        /// <summary>
        /// 根椐UID，只能删除自己的数据
        /// </summary>
        /// <param name="cxid"></param>
        /// <param name="uid"></param>
        /// <returns></returns>
        public bool DeleteCheck(int cxid, int uid)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from cxinfo ");
            strSql.Append(" where cxid=@cxid and uid=@uid");
            SqlParameter[] parameters = {
					new SqlParameter("@cxid", SqlDbType.Int,4),
                    new SqlParameter("@uid", SqlDbType.Int,4)
			};
            parameters[0].Value = cxid;
            parameters[1].Value = uid;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
		#endregion  ExtensionMethod
	}
}

